Run time error in VBA Excel 2019

hi, need help pls

i have a sheet run well on Excel 2019 and i have this message error:
Run-time error '-2147024809 (80070057)'

i have problem with yellow mark on VBA when i add a new data from UserForm:

If IsNumeric(Me("emp" & DataCol)) Then


and this is the code below :

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thank you an advance

Please read the yellow banner at the top of this page on how to attach a sample workbook.